[Cd00d]

I'm confused by your comment about chlorine from ACs. What sort of AC system uses tap water? Obviously not forced air, but I've only been in water cooled buildings that use nearby lake or river water, presumably because using treated water would be wasteful. Is this common somewhere?

Very curious - thanks for the insight, esp on the cleaning products!

[Alex3917]

Hmm I'm not sure about the air conditioning off the top of my head. George Taber has a book called To Cork or Not To Cork, and I know he discusses the different sources of chlorine in there. It's possible that some commercial air conditioning systems have built in humidifiers, but I'm not positive.

[tfigment]

Swamp/Evaporative coolers are popular in western US. We had one in Colorado and worked extremely well and was cheap to operate. Not very good wine country though.